Name:
Magnesium Hydroxide
Synonym:
Magnesia magma; Magnesium Hydrate, Milk of Magnesia
CAS:
1309-42-8
Section 1 - Chemical Product
MSDS Name:Magnesium Hydroxide
Synonym:Magnesia magma; Magnesium Hydrate, Milk of Magnesia
Synonym:Magnesia magma; Magnesium Hydrate, Milk of Magnesia
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
| CAS# | Chemical Name | emsds | EINECS# |
| 1309-42-8 | MAGNESIUM HYDROXIDE | 95-100 | 215-170-3 |
| Hazard Symbols: None Listed. Risk Phrases: None Listed. |
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
Dust is irritating to the respiratory tract.
Chronic:
Repeated exposure may cause kidney damage and digestive tract abnormalities.
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
Inhalation:
Dust is irritating to the respiratory tract.
Chronic:
Repeated exposure may cause kidney damage and digestive tract abnormalities.
Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
Notes to Physician:
Antidote: Intravenous calcium chloride(10 to 20 cc of 5% solution, diluted if desirable with isotonic saline) counteracts the toxic actions of magnesium. Also, physostigimine 0.5 to 1.0 mg subcutaneously.
Skin:
Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
Notes to Physician:
Antidote: Intravenous calcium chloride(10 to 20 cc of 5% solution, diluted if desirable with isotonic saline) counteracts the toxic actions of magnesium. Also, physostigimine 0.5 to 1.0 mg subcutaneously.
Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Wear a self contained breathing apparatus and appropriate personal protection. (See Exposure Controls, Personal Protection section). Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Wear a self contained breathing apparatus and appropriate personal protection. (See Exposure Controls, Personal Protection section). Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Local exhaust may be necessary to control concentrations to acceptable levels.
Exposure Limits CAS# 1309-42-8: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Local exhaust may be necessary to control concentrations to acceptable levels.
Exposure Limits CAS# 1309-42-8: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Solid
Color: white
Odor: odorless
pH: 9.5-10.5 (slurry)
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 662 deg F
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 662 deg F
Solubility in water: Insoluble in water.
Specific Gravity/Density: 2.36 (water=1)
Molecular Formula: Mg(OH)2
Molecular Weight: 58.3178
Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation.
Incompatibilities with Other Materials:
Phosphorus (spontaneous ignition).
Hazardous Decomposition Products:
Oxides of magnesium.
Hazardous Polymerization: Has not been reported.
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation.
Incompatibilities with Other Materials:
Phosphorus (spontaneous ignition).
Hazardous Decomposition Products:
Oxides of magnesium.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 1309-42-8: OM3570000 LD50/LC50:
CAS# 1309-42-8: Oral, mouse: LD50 = 8500 mg/kg; Oral, rat: LD50 = 8500 mg/kg.
Carcinogenicity:
MAGNESIUM HYDROXIDE - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
CAS# 1309-42-8: OM3570000 LD50/LC50:
CAS# 1309-42-8: Oral, mouse: LD50 = 8500 mg/kg; Oral, rat: LD50 = 8500 mg/kg.
Carcinogenicity:
MAGNESIUM HYDROXIDE - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Other No information available.
Section 13 - DISPOSAL CONSIDERATIONS
Products which are considered hazardous for supply are classified as Special Waste and the disposal of such chemicals is covered by regulations which may vary according to location. Contact a specialist disposal company or the local waste regulator for advice. Empty containers must be decontaminated before returning for recycling.
Section 14 - TRANSPORT INFORMATION
IATA
Shipping Name: MERCUROUS NITRATE
Hazard Class: 6.1
UN Number: 1627
Packing Group: II
IMO
Shipping Name: MERCUROUS NITRATE
Hazard Class: 6.1
UN Number: 1627
Packing Group: II
RID/ADR
Shipping Name: MERCUROUS NITRATE
Hazard Class: 6.1
UN Number: 1627
Packing group: II
Severe Marine Pollutant
Section 15 - REGULATORY INFORMATION
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 1309-42-8: 1
Canada
CAS# 1309-42-8 is listed on Canadas DSL List.
CAS# 1309-42-8 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1309-42-8 is listed on the TSCA inventory.
